GB2342597B - Monitoring of an NOx-storage catalytic converter having an NOx-sensor connected downstream - Google Patents

Monitoring of an NOx-storage catalytic converter having an NOx-sensor connected downstream

Info

Publication number
GB2342597B
GB2342597B GB9921660A GB9921660A GB2342597B GB 2342597 B GB2342597 B GB 2342597B GB 9921660 A GB9921660 A GB 9921660A GB 9921660 A GB9921660 A GB 9921660A GB 2342597 B GB2342597 B GB 2342597B
Authority
GB
United Kingdom
Prior art keywords
nox
monitoring
catalytic converter
connected downstream
sensor connected
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
GB9921660A
Other versions
GB9921660D0 (en
GB2342597A (en
Inventor
Joachim Berger
Rene Schnek
Andreas Blumenstock
Klaus Winkler
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Robert Bosch GmbH filed Critical Robert Bosch GmbH
Priority to GB0116045A priority Critical patent/GB2360955B/en
Priority to GB0116050A priority patent/GB2360956B/en
Publication of GB9921660D0 publication Critical patent/GB9921660D0/en
Publication of GB2342597A publication Critical patent/GB2342597A/en
Application granted granted Critical
Publication of GB2342597B publication Critical patent/GB2342597B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
    • F01N3/0807—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by using absorbents or adsorbents
    • F01N3/0828—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by using absorbents or adsorbents characterised by the absorbed or adsorbed substances
    • F01N3/0842—Nitrogen oxides
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/92—Chemical or biological purification of waste gases of engine exhaust gases
    • B01D53/94—Chemical or biological purification of waste gases of engine exhaust gases by catalytic processes
    • B01D53/9495—Controlling the catalytic process
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N11/00—Monitoring or diagnostic devices for exhaust-gas treatment apparatus, e.g. for catalytic activity
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N11/00—Monitoring or diagnostic devices for exhaust-gas treatment apparatus, e.g. for catalytic activity
    • F01N11/007—Monitoring or diagnostic devices for exhaust-gas treatment apparatus, e.g. for catalytic activity the diagnostic devices measuring oxygen or air concentration downstream of the exhaust apparatus
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D41/00—Electrical control of supply of combustible mixture or its constituents
    • F02D41/02—Circuit arrangements for generating control signals
    • F02D41/021—Introducing corrections for particular conditions exterior to the engine
    • F02D41/0235—Introducing corrections for particular conditions exterior to the engine in relation with the state of the exhaust gas treating apparatus
    • F02D41/027—Introducing corrections for particular conditions exterior to the engine in relation with the state of the exhaust gas treating apparatus to purge or regenerate the exhaust gas treating apparatus
    • F02D41/0275—Introducing corrections for particular conditions exterior to the engine in relation with the state of the exhaust gas treating apparatus to purge or regenerate the exhaust gas treating apparatus the exhaust gas treating apparatus being a NOx trap or adsorbent
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D41/00—Electrical control of supply of combustible mixture or its constituents
    • F02D41/02—Circuit arrangements for generating control signals
    • F02D41/14—Introducing closed-loop corrections
    • F02D41/1438—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor
    • F02D41/1444—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor characterised by the characteristics of the combustion gases
    • F02D41/146—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor characterised by the characteristics of the combustion gases the characteristics being an NOx content or concentration
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D41/00—Electrical control of supply of combustible mixture or its constituents
    • F02D41/02—Circuit arrangements for generating control signals
    • F02D41/14—Introducing closed-loop corrections
    • F02D41/1438—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor
    • F02D41/1444—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor characterised by the characteristics of the combustion gases
    • F02D41/146—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor characterised by the characteristics of the combustion gases the characteristics being an NOx content or concentration
    • F02D41/1463—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor characterised by the characteristics of the combustion gases the characteristics being an NOx content or concentration of the exhaust gases downstream of exhaust gas treatment apparatus
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D41/00—Electrical control of supply of combustible mixture or its constituents
    • F02D41/02—Circuit arrangements for generating control signals
    • F02D41/14—Introducing closed-loop corrections
    • F02D41/1438—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor
    • F02D41/1493—Details
    • F02D41/1495—Detection of abnormalities in the air/fuel ratio feedback system
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2550/00—Monitoring or diagnosing the deterioration of exhaust systems
    • F01N2550/03—Monitoring or diagnosing the deterioration of exhaust systems of sorbing activity of adsorbents or absorbents
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2560/00—Exhaust systems with means for detecting or measuring exhaust gas components or characteristics
    • F01N2560/02—Exhaust systems with means for detecting or measuring exhaust gas components or characteristics the means being an exhaust gas sensor
    • F01N2560/026—Exhaust systems with means for detecting or measuring exhaust gas components or characteristics the means being an exhaust gas sensor for measuring or detecting NOx
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D2200/00—Input parameters for engine control
    • F02D2200/02—Input parameters for engine control the parameters being related to the engine
    • F02D2200/08—Exhaust gas treatment apparatus parameters
    • F02D2200/0806—NOx storage amount, i.e. amount of NOx stored on NOx trap
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/40—Engine management systems

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Health & Medical Sciences (AREA)
  • Biomedical Technology (AREA)
  • Environmental & Geological Engineering (AREA)
  • Analytical Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Exhaust Gas After Treatment (AREA)
  • Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
  • Combined Controls Of Internal Combustion Engines (AREA)
GB9921660A 1998-09-25 1999-09-15 Monitoring of an NOx-storage catalytic converter having an NOx-sensor connected downstream Expired - Fee Related GB2342597B (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB0116045A GB2360955B (en) 1998-09-25 1999-09-15 Monitoring of an NOx-storage catalytic converter having an NOx-sensor connected downstream
GB0116050A GB2360956B (en) 1998-09-25 1999-09-15 Monitoring of an NOx-storage catalytic converter having an NOx-sensor connected downstream

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19843871A DE19843871B4 (en) 1998-09-25 1998-09-25 Diagnosis of a NOx storage catalytic converter with downstream NOx sensor

Publications (3)

Publication Number Publication Date
GB9921660D0 GB9921660D0 (en) 1999-11-17
GB2342597A GB2342597A (en) 2000-04-19
GB2342597B true GB2342597B (en) 2001-09-05

Family

ID=7882137

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9921660A Expired - Fee Related GB2342597B (en) 1998-09-25 1999-09-15 Monitoring of an NOx-storage catalytic converter having an NOx-sensor connected downstream

Country Status (3)

Country Link
JP (1) JP4289736B2 (en)
DE (1) DE19843871B4 (en)
GB (1) GB2342597B (en)

Families Citing this family (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19922981A1 (en) * 1999-05-19 2000-11-30 Bosch Gmbh Robert Procedure for checking the functionality of a NO¶x¶ storage catalytic converter
DE10023080B4 (en) * 2000-05-11 2009-10-22 Volkswagen Ag Method and device for monitoring a storage capacity of a NOx storage catalytic converter
DE10036453A1 (en) * 2000-07-26 2002-02-14 Bosch Gmbh Robert Operating a nitrogen oxide storage catalyst on vehicle IC engine comprises storing nitrogen oxides generated from the engine in first phase in storage catalyst
DE10039709A1 (en) * 2000-08-14 2002-03-07 Bosch Gmbh Robert Method and control device for determining the state of a nitrogen oxide (NOx) storage catalytic converter
US6698188B2 (en) 2000-12-08 2004-03-02 Toyota Jidosha Kabushiki Kaisha Emission control apparatus of internal combustion engine
JP3649130B2 (en) * 2001-01-22 2005-05-18 トヨタ自動車株式会社 Exhaust gas purification device for internal combustion engine
DE10300555B4 (en) * 2002-01-10 2009-03-19 Toyota Jidosha Kabushiki Kaisha, Toyota-shi A deterioration determination device for an engine exhaust gas control device and deterioration determination method
DE10226873B4 (en) * 2002-06-12 2012-05-31 Volkswagen Ag Method for controlling the mode selection of an internal combustion engine
DE10258876A1 (en) * 2002-12-06 2004-08-19 Volkswagen Ag Method and device for diagnosing a NOx storage catalytic converter when the vehicle is stationary
DE10305452B4 (en) * 2002-12-30 2013-04-18 Volkswagen Ag Method for diagnosing a catalyst in the exhaust gas flow of an internal combustion engine and device for carrying out the method
DE10302700B4 (en) * 2002-12-31 2013-01-17 Volkswagen Ag Method and device for diagnosing a NOx storage catalytic converter in the exhaust gas tract of an internal combustion engine
ITBO20030136A1 (en) * 2003-03-13 2004-09-14 Magneti Marelli Powertrain Spa METHOD FOR ESTIMATING THE DEGRADATION OF THE CAPACITY OF
DE10312440B4 (en) * 2003-03-20 2006-04-06 Siemens Ag Emission control method for lean-burn engines
DE10313216B4 (en) * 2003-03-25 2012-07-12 Robert Bosch Gmbh Method for operating a nitrogen oxide (NOx) storage catalytic converter arranged in the exhaust region of an internal combustion engine
JP2005273653A (en) * 2004-02-27 2005-10-06 Nissan Motor Co Ltd Deterioration diagnosis device for filter
DE102004049577A1 (en) * 2004-10-12 2006-04-20 Robert Bosch Gmbh Method for operating an internal combustion engine, in whose exhaust gas area a NOx storage catalytic converter and a NOx sensor are arranged, and apparatus for carrying out the method
DE102005050517A1 (en) * 2005-10-21 2007-04-26 Umicore Ag & Co. Kg Method for operating a nitrogen oxide storage catalytic converter on a diesel engine
JP4737010B2 (en) * 2006-08-30 2011-07-27 トヨタ自動車株式会社 Catalyst deterioration diagnosis device
DE102007009840B4 (en) 2007-03-01 2018-11-22 Robert Bosch Gmbh Method for determining a malfunction of a device for metering fuel
JP4729518B2 (en) * 2007-03-07 2011-07-20 トヨタ自動車株式会社 NOx catalyst deterioration diagnosis device
JP4349425B2 (en) 2007-03-19 2009-10-21 日産自動車株式会社 NOx catalyst diagnostic device
FR2942502A1 (en) * 2009-02-24 2010-08-27 Peugeot Citroen Automobiles Sa Nitrogen oxide controlling method for oil engine of motor vehicle, involves operating engine according to calibration so as to provoke reduction of nitrogen oxide production source, when engine is placed in specific environment
GB2502797A (en) * 2012-06-06 2013-12-11 Gm Global Tech Operations Inc Method of assessing the thermal ageing of a catalyst in an exhaust system
KR101406495B1 (en) * 2012-12-17 2014-06-27 현대자동차주식회사 Lnt control method for vehicle
KR101877641B1 (en) * 2016-11-29 2018-07-11 재단법인 자동차융합기술원 Degrading apparatus of catalyst using oxidation catalyst
US11435332B2 (en) * 2020-09-25 2022-09-06 GM Global Technology Operations LLC Sensor offset diagnostic in idle and after-run

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5437153A (en) * 1992-06-12 1995-08-01 Toyota Jidosha Kabushiki Kaisha Exhaust purification device of internal combustion engine
JPH0988560A (en) * 1995-09-27 1997-03-31 Nissan Motor Co Ltd Diagnostic device for engine
GB2307311A (en) * 1995-11-20 1997-05-21 Daimler Benz Ag Method operating IC engine to control storage of NOx in storage catalyst
US5771685A (en) * 1996-10-16 1998-06-30 Ford Global Technologies, Inc. Method for monitoring the performance of a NOx trap
US5778666A (en) * 1996-04-26 1998-07-14 Ford Global Technologies, Inc. Method and apparatus for improving engine fuel economy
EP0928890A2 (en) * 1998-01-10 1999-07-14 Degussa Aktiengesellschaft Method for operating an NOx storage catalytic converter
EP0936349A2 (en) * 1998-02-12 1999-08-18 Nissan Motor Company, Limited Method and system for diagnosing deterioration of NOx catalyst
EP0950801A1 (en) * 1998-04-14 1999-10-20 Degussa-Hüls Aktiengesellschaft Process for detecting the deterioration of a nitrogen oxide adsorbing catalyst

Family Cites Families (2)

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Publication number Priority date Publication date Assignee Title
JP3316066B2 (en) * 1993-12-22 2002-08-19 富士重工業株式会社 Failure diagnosis device for exhaust gas purification device
DE19635977A1 (en) * 1996-09-05 1998-03-12 Bosch Gmbh Robert Sensor for monitoring a NOx catalytic converter

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5437153A (en) * 1992-06-12 1995-08-01 Toyota Jidosha Kabushiki Kaisha Exhaust purification device of internal combustion engine
JPH0988560A (en) * 1995-09-27 1997-03-31 Nissan Motor Co Ltd Diagnostic device for engine
GB2307311A (en) * 1995-11-20 1997-05-21 Daimler Benz Ag Method operating IC engine to control storage of NOx in storage catalyst
US5778666A (en) * 1996-04-26 1998-07-14 Ford Global Technologies, Inc. Method and apparatus for improving engine fuel economy
US5771685A (en) * 1996-10-16 1998-06-30 Ford Global Technologies, Inc. Method for monitoring the performance of a NOx trap
EP0928890A2 (en) * 1998-01-10 1999-07-14 Degussa Aktiengesellschaft Method for operating an NOx storage catalytic converter
EP0936349A2 (en) * 1998-02-12 1999-08-18 Nissan Motor Company, Limited Method and system for diagnosing deterioration of NOx catalyst
EP0950801A1 (en) * 1998-04-14 1999-10-20 Degussa-Hüls Aktiengesellschaft Process for detecting the deterioration of a nitrogen oxide adsorbing catalyst

Also Published As

Publication number Publication date
DE19843871B4 (en) 2005-05-04
JP4289736B2 (en) 2009-07-01
GB9921660D0 (en) 1999-11-17
GB2342597A (en) 2000-04-19
DE19843871A1 (en) 2001-08-02
JP2000104536A (en) 2000-04-11

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20170915